War of the Spark

Teferi, Time Raveler | Legendary Planeswalker | Teferi | Each opponent can cast spells only any time they could cast a sorcery. +1: Until your next turn, you may cast sorcery spells as though they had flash. −3: Return up to one target artifact, creature, or enchantment to its owner's hand. Draw a card. | Chris Rallis

Dovin, Hand of Control | Legendary Planeswalker | Dovin | Artifact, instant, and sorcery spells your opponents cast cost {1} more to cast. −1: Until your next turn, prevent all damage that would be dealt to and dealt by target permanent an opponent controls. | Kieran Yanner

Oath of Kaya | Legendary Enchantment | | When Oath of Kaya enters the battlefield, it deals 3 damage to any target and you gain 3 life. Whenever an opponent attacks a planeswalker you control with one or more creatures, Oath of Kaya deals 2 damage to that player and you gain 2 life. | Wesley Burt

Feather, the Redeemed | Legendary Creature | Angel | Flying Whenever you cast an instant or sorcery spell that targets a creature you control, exile that card instead of putting it into your graveyard as it resolves. If you do, return it to your hand at the beginning of the next end step. | Wayne Reynolds

Pledge of Unity | Instant | | Put a +1/+1 counter on each creature you control. You gain 1 life for each creature you control. | Chris Rallis

Huatli, the Sun's Heart | Legendary Planeswalker | Huatli | Each creature you control assigns combat damage equal to its toughness rather than its power. −3: You gain life equal to the greatest toughness among creatures you control. | Lius Lasahido